US4964982A - Mail stacker - Google Patents
Mail stacker Download PDFInfo
- Publication number
- US4964982A US4964982A US07/354,270 US35427089A US4964982A US 4964982 A US4964982 A US 4964982A US 35427089 A US35427089 A US 35427089A US 4964982 A US4964982 A US 4964982A
- Authority
- US
- United States
- Prior art keywords
- conveying path
- primary
- path portion
- articles
- letters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/66—Advancing articles in overlapping streams
- B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C1/00—Measures preceding sorting according to destination
- B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/16—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/58—Article switches or diverters
- B65H29/60—Article switches or diverters diverting the stream into alternative paths
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
- G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
- G06K13/08—Feeding or discharging cards
- G06K13/12—Feeding or discharging cards from conveying arrangement to magazine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
- B65H2301/4474—Pair of cooperating moving elements as rollers, belts forming nip into which material is transported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/20—Belts
- B65H2404/26—Particular arrangement of belt, or belts
- B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/20—Belts
- B65H2404/26—Particular arrangement of belt, or belts
- B65H2404/269—Particular arrangement of belt, or belts other arrangements
- B65H2404/2691—Arrangement of successive belts forming a transport path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1916—Envelopes and articles of mail
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S209/00—Classifying, separating, and assorting solids
- Y10S209/90—Sorting flat-type mail
Definitions
- the invention relates to a stacker for mail and similar flat, flexible conveying material.
- the mail In automatic mail distribution systems, the mail is transported individually on a conveying path for the purpose of automatically reading its destination and later sorting it accordingly.
- the mail is assigned, by way of a compartmented path equipped with switches, to a plurality of stack compartments according to postal code regions.
- the mail moves on the conveyor belt at the greatest possible speed and with the smallest possible spaces between individual articles. Under these circumstances, mail that is assigned to the same stack compartment encounters the problem of congestion caused by the leading edge of the next-following article running onto the trailing edge of the preceding article.
- German Offenlegungsschrift DE-OS No. 3,317,865 discloses a mail distribution system for articles of mail that are stacked upright so as to rest on their lower longitudinal edges to guide such articles, when they enter the equipment, so that their lower leading edge enters tangentially into a revolving spindle wheel.
- the edge of the spindle wheel transports the subsequent portions of the article, particularly its trailing region, in the direction of the already stacked articles so that the next-following article will reliably enter the stack compartment next to the preceding article.
- a spindle wheel drive for each stack compartment is very complicated and expensive, particularly for fine distribution systems having a large number of small capacity stack compartments and a low throughput.
- a pressure roller is provided which is disposed below the contact surface of the incoming articles and which grips the lower edge of the incoming letters with part of its upper roll circumference so as to urge them in the direction of the stack of letters.
- a stacker for articles of mail and similar flat, flexible conveying material including: a conveying path on which the articles are transported individually, the conveying path including a primary conveying path portion having an upstream end and a downstream end, and a secondary conveying path portion diverging from the first conveying path portion at the upstream end and merging with the primary conveying path portion at the downstream end; a compartmented path disposed along the conveying path downstream of the primary and secondary conveying path portions and including switches and stack compartments for sorting articles; a reading device located along the conveying path upstream of the primary and secondary conveying path portions for detecting two successive articles to be assigned to the same stack compartment; a switch at the upstream end of the primary conveying path portion for diverting one of two successive articles assigned to the same stack compartment to the secondary conveying path portion and for allowing the other of the two successive articles to be transported by the primary conveying path portion, the secondary conveying path portion being configured in at least one of length and transporting speed so
- FIG. 1 a schematic of the primary conveying path and the secondary conveying path traveling at the same conveying speeds according to one embodiment of the invention
- FIG. 1a is a schematic showing two letters B1 and B2 separated by a distance a upstream of switch W in FIG. 1.
- FIG. 1b is a schematic showing two letters B1 and B2 overlapping each other after combining in FIG. 1.
- FIG. 2 a schematic of the primary conveying path and the secondary conveying path traveling at different conveying speeds according to another embodiment of the invention.
- FIG. 2a is a schematic showing two letters B1 and B2 separated by a distance a upstream of switch W in FIG. 2.
- FIG. 2b is a schematic showing two letters B1 and B2 overlapping each other after combining in FIG. 2.
- the numeral 1 identifies a conveying path on which the letters arrive already in individualized form.
- the letters are transported standing upright on one longitudinal edge.
- the drawing figures show the conveying paths in a top view.
- the letters are prevented from falling over by lateral belts moving, for example, around guide rollers R11 and R12.
- Subfloor belts (not shown) prevent the letters from falling out of the lateral belts.
- FIG. 2 on the left outside of the figure, there is disposed a reading device 5 for determining the destination of the letter, and on the right there is shown the compartment path 7 including switches and stack compartments for sorting the letters according to their respectively determined destinations.
- an additional conveying path marked secondary conveying path 3 is provided in parallel with part of the conveying path, here called primary conveying path 2.
- the transporting speed in this embodiment is the same on both conveying paths, but secondary conveying path 3 is longer than the primary conveying path.
- Primary conveying path 2 includes guide rollers R21 to R23, and a metal guide sheet L.
- Secondary conveying path 3 includes outer lateral belts which move around guide rollers R31, R32 and R61, R62 and an intermediate roller R51 as well as the inner lateral belt moving around guide rollers R41, R42 and R43.
- a switch W guides the first letter B1 of two letters assigned to the same stack compartment into secondary conveying path 3. At combining location V, this letter, together with the second letter B2, enters the continuing transporting path 4 including guide rollers R71 and R81.
- the detour u over secondary conveying path 3 is selected in such a manner that, if a is the distance between letters (see FIG. 1a ) and b is the length of the shortest letter to be expected,
- the stacking device in which the letters are stacked together with the already stacked letters is indicated as StR in FIG. 1. Due to the overlapping of the letters, the second letter can no longer abut on the first letter during the stacking process and the distance a between such pairs of letters or a pair of letters and an unpaired letter becomes greater which additionally increases stacking reliability.
- FIGS. 2, 2a and 2b show a further embodiment according to the invention which, is particularly advantageous from a space saving point of view. Parts performing the same functions are given the same reference numerals so that they need not be described again.
- the transporting direction of the letters in FIG. 2 is again from the left to the right, but the transporting speed of the letters in secondary conveying path 3 is greater than in primary conveying path 2. This is realized by a faster moving transporting belt between guide rollers R31 and R32.
- subfloor belts (not shown), whose speed is adapted to the respective conveying paths, prevent the letters from slipping out toward the bottom.
- a metal guide sheet L supports the letters on one side.
- the switch is set by way of a control device controlled by a reading device under consideration of the transporting speed of the letters.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Sorting Of Articles (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
a<u<b.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3723259A DE3723259C2 (en) | 1987-07-14 | 1987-07-14 | Stacking device for letters |
Publications (1)
Publication Number | Publication Date |
---|---|
US4964982A true US4964982A (en) | 1990-10-23 |
Family
ID=6331552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/354,270 Expired - Lifetime US4964982A (en) | 1987-07-14 | 1989-05-19 | Mail stacker |
Country Status (2)
Country | Link |
---|---|
US (1) | US4964982A (en) |
DE (1) | DE3723259C2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07100438A (en) * | 1993-10-05 | 1995-04-18 | Nec Corp | Device and method for carrying letter and postcard |
EP1053963A2 (en) * | 1999-05-12 | 2000-11-22 | Pitney Bowes Inc. | A system and method for providing document accumulation sets to an inserter system |
EP1067077A2 (en) * | 1999-05-12 | 2001-01-10 | Pitney Bowes Inc. | Method and device for sheet collation |
US20080142415A1 (en) * | 2004-08-16 | 2008-06-19 | Lockheed Martin Corporation | Cross circulation mail sorter stacker design with dual ported input, and method of operating the same |
US20080211178A1 (en) * | 2006-12-07 | 2008-09-04 | Siemens Aktiengesellschaft | Method and device for diverting flat objects |
US20090146364A1 (en) * | 2007-11-29 | 2009-06-11 | Siemens Aktiengesellschaft | Method and device for merging two flows of objects |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4331244C2 (en) * | 1993-09-15 | 1995-12-14 | Licentia Gmbh | Distribution device for addressed piece goods |
DE19528828C1 (en) * | 1995-08-05 | 1996-08-29 | Licentia Gmbh | Control of postal sorting appts. by measurement of interpackage gap |
DE19642350C1 (en) * | 1996-10-14 | 1997-10-09 | Aec Electrocom Gmbh | Arrangement for correcting gaps in flow of flat letters |
DE19749610C1 (en) * | 1997-11-10 | 1998-11-12 | Siemens Ag | Overlapping letter stream formation method |
DE10223348C1 (en) * | 2002-05-25 | 2003-12-11 | Siemens Ag | Method and device for generating a total stack of flat mail items |
US7414219B2 (en) * | 2004-10-19 | 2008-08-19 | Pitney Bowes Inc. | System and method for grouping mail pieces in a sorter |
DE102011004091A1 (en) * | 2011-02-14 | 2012-08-16 | Siemens Aktiengesellschaft | Method and apparatus for sorting flat objects with gap variation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3473034A (en) * | 1966-03-31 | 1969-10-14 | Norbert Goldstern | Device and system for scanning information supports |
US3724657A (en) * | 1970-05-16 | 1973-04-03 | Nippon Electric Co | Switching device for delivering sheet-like articles |
US4289052A (en) * | 1979-10-05 | 1981-09-15 | Molins Machine Company, Inc. | Web gap control for corrugator |
US4456127A (en) * | 1981-08-31 | 1984-06-26 | Bell & Howell Company | Document handling machine with two stage collection compartment for grouping documents |
US4774545A (en) * | 1986-05-23 | 1988-09-27 | Hitachi Koki Company, Limited | Cut paper electrophotographic printers with continuous paper feed mechanisms |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1237504B (en) * | 1964-08-22 | 1967-03-23 | Telefunken Patent | Device for producing an even conveying flow |
DE1271040B (en) * | 1967-08-26 | 1968-06-20 | Telefunken Patent | Device for correcting the phase position of individually delivered flat objects |
DE2443418A1 (en) * | 1974-09-09 | 1976-03-18 | Otto Dr Seefelder | Article sorting system - uses multi-binary code marking and reader devices to control destination of article |
DE3317865A1 (en) * | 1983-05-17 | 1984-11-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | DISTRIBUTION RANGE FOR FLAT SHIPMENTS LIKE LETTERS |
DE3700827A1 (en) * | 1987-01-14 | 1988-07-28 | Licentia Gmbh | Stacking device for letters |
-
1987
- 1987-07-14 DE DE3723259A patent/DE3723259C2/en not_active Expired - Lifetime
-
1989
- 1989-05-19 US US07/354,270 patent/US4964982A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3473034A (en) * | 1966-03-31 | 1969-10-14 | Norbert Goldstern | Device and system for scanning information supports |
US3724657A (en) * | 1970-05-16 | 1973-04-03 | Nippon Electric Co | Switching device for delivering sheet-like articles |
US4289052A (en) * | 1979-10-05 | 1981-09-15 | Molins Machine Company, Inc. | Web gap control for corrugator |
US4456127A (en) * | 1981-08-31 | 1984-06-26 | Bell & Howell Company | Document handling machine with two stage collection compartment for grouping documents |
US4774545A (en) * | 1986-05-23 | 1988-09-27 | Hitachi Koki Company, Limited | Cut paper electrophotographic printers with continuous paper feed mechanisms |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07100438A (en) * | 1993-10-05 | 1995-04-18 | Nec Corp | Device and method for carrying letter and postcard |
EP1053963A2 (en) * | 1999-05-12 | 2000-11-22 | Pitney Bowes Inc. | A system and method for providing document accumulation sets to an inserter system |
EP1067077A2 (en) * | 1999-05-12 | 2001-01-10 | Pitney Bowes Inc. | Method and device for sheet collation |
EP1053963A3 (en) * | 1999-05-12 | 2002-04-10 | Pitney Bowes Inc. | A system and method for providing document accumulation sets to an inserter system |
EP1067077A3 (en) * | 1999-05-12 | 2002-04-10 | Pitney Bowes Inc. | Method and device for sheet collation |
US20080142415A1 (en) * | 2004-08-16 | 2008-06-19 | Lockheed Martin Corporation | Cross circulation mail sorter stacker design with dual ported input, and method of operating the same |
US7414218B2 (en) | 2004-08-16 | 2008-08-19 | Lockheed Martin Corporation | Cross circulation mail sorter stacker design with dual ported input, and method of operating the same |
US20080211178A1 (en) * | 2006-12-07 | 2008-09-04 | Siemens Aktiengesellschaft | Method and device for diverting flat objects |
US7744084B2 (en) | 2006-12-07 | 2010-06-29 | Siemens Aktiengesellschaft | Method and device for diverting flat objects |
US20090146364A1 (en) * | 2007-11-29 | 2009-06-11 | Siemens Aktiengesellschaft | Method and device for merging two flows of objects |
Also Published As
Publication number | Publication date |
---|---|
DE3723259A1 (en) | 1989-01-26 |
DE3723259C2 (en) | 1995-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LICENTIA PATENT-VERWALTUNGS-GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:GOLDKUHLE, GERHARD;SUSSNAPP, GUNTER;REEL/FRAME:005118/0170 Effective date: 19890613 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LICENTIA-PATENTVERWALTUNGS-GMBH;REEL/FRAME:008732/0783 Effective date: 19970422 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |